vent critters rework

[deltanedas]

About the PR

actually didnt take that long didnt need the nuking pr at all

this makes vent critters better for everyone, sec and crew alike:

• 1 vent is picked for all mobs to spawn from
• the station gets 15 seconds advance warning before they spawn, giving crew time to run away and sec to arm up
• number of critters scales with player count so lowpop doesnt get as many as highpop
• false alarm, its just mice!!!

current numbers can go up to like 9 slimes on highpop, requiring good sec coordination to deal with

Why / Balance

makes vent critters less ass and more fair to new players that dont have a spear ready to not get killed by simplemobs
now that you can run away, sec actually has something to do instead of "oops the crew killed all the simplemobs to not fucking die, just run around looking for stragglers in unlit maints"

Technical details

vent critters rule was completely rewritten

Media

so real

Requirements

• I have tested all added content and changes.
• I have added media to this PR or it does not require an ingame showcase.

Breaking changes

any future vent critter events will need duration lowered to 15

Changelog
🆑

• tweak: Reworked vent critters, now after a delay all the mobs spawn from 1 vent from the announcement.

[ThataKat]

Direction reviewing, answer in 1-2 days

[rosieposieeee]

a little concerned 15s might be way too little time, maybe something more like 45s? i can imagine using up all 15s just trying to tell someone that we need to leave, and sec wont even have a chance to respond in 15s

[deltanedas]

sec doesnt need to teleport there, as long as everyone is out of harms way the slimes spiders etc will stay there patiently waiting for sec to arrive